Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
150020excellentexcellent11excellent
140020excellentexcellent11excellent
130016excellentexcellent11excellent
120020excellentexcellent11excellent
110015excellentexcellent11excellent
100018excellentexcellent11excellent
090018excellentexcellent11excellent
080019excellentexcellent11excellent
070021goodexcellent11excellent
060027goodexcellent21excellent
050038goodexcellent21excellent
040043goodexcellent21excellent
030053goodexcellent31excellent
020057goodexcellent31excellent
010086lightly pollutedexcellent31excellent
000090lightly pollutedexcellent31excellent
230085lightly pollutedexcellent21excellent
220078lightly pollutedexcellent31excellent
210063lightly pollutedexcellent31excellent
200066lightly pollutedexcellent31excellent
190062lightly pollutedexcellent21excellent
180062lightly pollutedexcellent21excellent
170070lightly pollutedexcellent31excellent
1600101moderately pollutedexcellent31excellent